pkg/config/config.go
2024-01-20 18:25:59 +01:00

166 lines
2.5 KiB
Go

package config
import (
"fmt"
"io"
"net"
"os"
"time"
yaml "gopkg.in/yaml.v2"
)
// Load a config from a file.
func Load(file string) (config *Config, err error) {
f, err := os.Open(file)
if err != nil {
return
}
defer f.Close()
config, err = Read(f)
if err != nil {
return nil, fmt.Errorf("failed to parse %s: %v", file, err)
}
return
}
// Read a config from a reader.
func Read(reader io.Reader) (config *Config, err error) {
config = &Config{}
err = yaml.NewDecoder(reader).Decode(config)
if err != nil {
return nil, err
}
return
}
// Parse the config in data.
func Parse(data []byte) (config *Config, err error) {
config = &Config{}
err = yaml.Unmarshal(data, config)
if err != nil {
return nil, err
}
return
}
// Config represent this system's configuration
type Config struct {
Vars []VarDefault
Layers []string
Modules []string
RootUser struct {
PasswordHash string `yaml:"password_hash"`
AuthorizedKeys []string `yaml:"authorized_keys"`
} `yaml:"root_user"`
Storage StorageConfig
Mounts []MountDef
VPNs []VPNDef
Groups []GroupDef
Users []UserDef
Files []FileDef
Networks []NetworkDef
}
type VarDefault struct {
Name string
Default string
}
type StorageConfig struct {
UdevMatch string `yaml:"udev_match"`
RemoveVolumes []string `yaml:"remove_volumes"`
Volumes []VolumeDef
}
type VolumeDef struct {
Name string
Size string
Extents string
FS string
Mount struct {
Path string
Options string
}
}
type MountDef struct {
Type string
Dev string
Path string
Options string
}
type VPNDef struct {
Name string `yaml:"name"`
ListenPort *int `yaml:"port"`
IPs []string
Peers []VPNPeer
}
type VPNPeer struct {
PublicKey string `yaml:"public_key"`
WithPreSharedKey bool `yaml:"with_preshared_key"`
Endpoint *net.UDPAddr
KeepAlive time.Duration `yaml:"keepalive"`
AllowedIPs []string `yaml:"allowed_ips"`
}
type GroupDef struct {
Name string
Gid int
}
type UserDef struct {
Name string
Gid int
Uid int
}
type FileDef struct {
Path string
Mode os.FileMode
Content string
Symlink string
Dir bool
}
type NetworkDef struct {
Match struct {
All bool
Name string
Ping *struct {
Source string
Target string
Count int
Timeout int
}
}
Optional bool
Script string
}
func (c *Config) FileContent(filePath string) []byte {
for _, f := range c.Files {
if f.Path == filePath {
return []byte(f.Content)
}
}
return nil
}